Multiple Repetitive Cycles
What G code is used to specify the multiple repetitive cycle for radial grooving?
G73
G72
G75
G74
G70
G71
G75
What G code is used to specify the multiple repetitive cycle for peck drilling?
G72
G71
G70
G75
G73
G74
G74
What is the G code used to instate tool nose radius compensation in a tool-right condition?
G20
G42
G41
G40
G42
What is the G code used to instate tool nose radius compensation in a tool-left condition?
G42
G40
G20
G41
G41
What G code is used to specify the multiple repetitive cycle for rough turning and boring?
G71
G72
G70
G74
G73
G75
G71
Which letter address is used in the G71 command to specify that the finishing stock be left on all diameters?
D
Q
U
P
F
W
U
Which letter address is used in the G71 command to specify that the sequence number for the last command of the finish pass definition?
D
W
Q
U
F
P
Q
What happens if you forget to enter the tool nose radius and cutting tool type into the appropriate offset registers, and their current values are zero?
the program stops running at the turret index command
the G41 or G42 in the program tells the machine how to compensate, and the workpiece is correctly machined
an alarm sounds when the instating command is executed
the machine behaves as if tool nose radius compensation is not in use
the machine behaves as if tool nose radius compensation is not in use
Which G code do you use to program data entries, including tool nose radius compensation offset data?
G40
G10
G42
G41
G10
What is the G code used to cancel tool nose radius compensation?
G20
G41
G40
G42
G40
For G71, the finish pass definition ends at the command that brings the cutting tool:
flush with the first face in the Z axis
flush with the first diameter in the X axis
back to the convenient starting position in the X axis
back to the convenient starting position in the Z axis
back to the convenient starting position in the X axis
In the radial grooving multiple repetitive cycle G75 which word specifies the groove bottom position?
Z
K
X
I
X
What is the type number for a boring bar which you must place in the offset's T register?
4
3
2
1
2
What is tool nose radius compensation used for?
To compensate for the small radius on a single point cutting tool's cutting edge.
What G code is used to specify the multiple repetitive cycle for finishing?
G74
G72
G70
G75
G73
G71
G70
The convenient starting position for the G72 rough facing multiple repetitive cycle is:
clear of the spindle centreline in the X axis and flush with the workpiece face in the Z axis
flush with the spindle centreline in the X axis and clear of the workpiece face in the Z axis
clear of the stock diameter in the X axis and flush with the workpiece face in the Z axis
flush with the stock diameter in the X axis and clear of the workpiece face in the Z axis
clear of the stock diameter in the X axis and flush with the workpiece face in the Z axis
What G code is used to specify the multiple repetitive cycle for rough facing?
G75
G70
G74
G72
G73
G71
G72
What does G40 do?
Cancels tool nose radius compensation.
When internal machining (boring), in a direction toward the chuck, which tool nose radius compensation G code would you use?
G41
What is the type number for a turning tool which you must place in the offset's T register?
1
2
3
4
3
In the peck drilling multiple repetitive cycle which word specifies the hole bottom position?
Z
I
X
K
Z
In the face grooving multiple repetitive cycle G74 which word specifies the bottom position groove?
K
I
X
Z
Z
At its worst condition, 45 degrees, what is the deviation if you are using a single point cutting tool with a 1/16 inch nose radius without using tool nose radius compensation (TNRC)?
1/32 inch or 0.03125 inch
Name the 2 values that must be entered into offset registers when using tool nose radius compensation.
- the tool nose radius size must be entered in the R register
- a code number specifying the cutting tool type must be entered in the T register
Which letter address is used in the G71 command to specify that the finishing stock be left on all faces?
F
Q
D
P
U
W
W